Rotary motor



C. A. DIES.

20mm MOTOR. APPLICATION FILED JULY 22 I921.

Patented 0015. 311, 11922.

//v VE/V 70/? CH HL EJ /4. 155, 6r M 4 l mented 3i, ,r can an stares meant CHARLES A. DIES, OF CHIGAGC, ILLINGIS.

aoraav Moron.

Application .filed ma as,

To all whom it may cor-acorn Be it known that l, Crrnnnns A. DIES, a citizen of the United States of America, and a resident of Chicago, in the county of Cook, State of Illinois, have vented certain new and useful Improvements in Rotary Motors, of which the following is a specification.

This invention relates, to portable rotary motors of the reversible type for use in con nection with rotary tooth brushes and like appliances, and has for its object:

To provide a simple and efficient struc tural formation and association of parts in the motor unit whereby a reversal and stoppage of the same is readily effected. and with which a convenient inlet and outlet of the motive fluid is attained, all as will here inafter more fully appear.

in the accompanying drawing:

Fig. 1, is a side elevation illustrating the general arrangement of parts in the invention.

Fig. 2, is an enlarged transverse section on line 22, Fig. 1.

Fig. 3, is an enlarged longitudinal section on line 33, Fig. 2.

Fig. a, is a detail lon a modification.

Like reference numerals parts in the several views.

Referring to the drawing, 1 designates the motor casing formed with a circular bore or chamber for the rotary piston of the motor, and with a circular bore in parallel relation to the piston bore for the reception of the semi-rotary controlling valve of the motor. In the preferred construction shown one end head 2 of the casing l is of a fixed or integral formation, while the companion end head 3 is removable to admit of the assembly of the motor parts.

4 designates the rotary wheel or piston of the motor formed with a plurality of radial blades of any usual form, the outer ends of which are adapted to revolve in adjacent relation to the inner circular face of the piston bore of the casing l aforesaid. Said wheel or piston 4i is carried on the end of a shaft 5 which has journal bearing in the fixed head 2 of the motor casing and in a central bearing sleeve 6 extending axially from said head.

7 designates a semi-rotary valve member arranged in the valve bore of the casing 1 above described. Said valve member is formed with a diametric passage 8 for 'itudin al section of indicate like 1921. Serial No. reams.

the motive fluid, with one end of said passage having communication with the bore of the hereinafter described tubular stem or handle, while the other end of said passage 8 is adaptedfor alternate registry with motor casing passages as follows 9 and 10 designate a pair of tangentially arranged passages connecting the above described piston and valve bores of the motor casing 1 together, and adapted for alternate registry with the motive fluid passage 8 aforesaid, to direct the motive fluid to one side or the other of the wheel or piston 4 to cause the same to revolve in the direction required. With the passage 8 moved to a position between the passage 9, 10 the supply of motive fluid is shut off and the motor comes to a stop.

11 designates the tubular stem or handle above referred to, fixedly attached to the valve member 7 and extending radially therefrom, with its bore or passage connecting with the aforesaid passage 8 of the valve member as shown. The stem 11 is formed with an exterior adapted to receive and hold an end of a flexible tube or hose through which the supply of motive fluid is brought to the motor.

12 designates an elongated orifice in the wall of the valve receiving bore of the motor casing 1, for the passage and movement of the stem 11 in the adjustment of the same and the associated valve member 7 in effooting the reversal and stoppage of the motor above described.

13 designates a central sleeve or extension formed as a fixed part of the removable casing head 3 aforesaid. with the inner portion of its tubular bore adjacent to the wheel or piston at formed with a flare 13 to afford a ready out flow of the motive fluid after its impelling action on said wheel or piston. The exterior of the sleeve 13 is formed to receive and hold the end of a flexible hose adapted to conduct the waste motive fluid to a suitable point of discharge.

In the drawing the invention is shown as applied. to a rotary tooth brushing appliance.

The modification illustrated in Fig. i. differs from the arrangement of parts heretofore described, in the formation of the brush carrying shaft 5 separate from the shaft 5 of the motor wheel or piston 4c, and the connection of said shafts by a reducing gearing, comprising a pinion 19 on the shaft 5 and an internal gear Wheel 20 on the brush carrying shaft 5 as shown, or by any other suitable type of gearing generally used in effecting speed reduction.

Having thus fully described my invention, What I claim as new and desire to secure by Letters Patent, is

1. In a motor the combination of a motor casing formed With piston and valve chambers in parallel relation and connected to gether by a pair of tangential passages, a removable head closing one endofthe piston chamber, a central tubular outlet neck on i said head, a head closing the other end of the piston chamber, a central bearing sleeve on said head, a rotary piston of the radial bladed type arranged in said piston cham-' her, a shaft carrying said piston, j ournalled in the bearing sleeve aforesaid, a semi-rotary valve member arranged in the valve chamber aforesaid and having a diametric passage, and a tubular inlet and operating stem extending radially from said valve member.

2. In a'motor the combination of a motor casing formed with piston and valve chambers in parallel relation and connected together by a pair of tangential passages, a removable head closing one end of the piston chamber, a central tubular outlet neck on said head having a flaring formation towards the piston chamber, a head closing the other end of the piston chamber, a central bearing sleeve on said head, a rotary piston of the radial bladed type arranged in said piston chamber, a shaft carrying said piston journalled in the bearing sleeve aforesaid, a semi-rotary valve member arranged in the valve chamber aforesaid and hav ing a diametric passage, and a tubular inlet and operating stem extending radially from said valve member. v a Signed at Chicago, Illinois, this 20th day of July, 1921.

. CHARLES a. DIES. 

